AEI

AEI, also known as Associated Electrical Industries was a United Kingrom based Electrical engineering company which formed from Metropolitan-Vickers. They where the first company in the UK to produce Electron Microscopes.

List of Models

Transmission Electron Microscops
Model	Year	Accelerating Voltage	Cathode Type	Nr. of Condensor Lenses	Nr. of Imaging Lenses	Projective	Resolution	Successor
EM-1	1936							EM-2
EM-2	1946	50 KV						EM-3
EM-3								EM-4
EM-4
EM-5	c.a 1950	500 KV						EM-7 Presumably
EM-6	ca. 1968							EM-6B
EM-6M	ca. 1968	80 KV (Factory selectable: 30, 40, 50, 60, 80 KV One only)	Tungsten Hairpin	2 Electromagnetic	3 Electromagnetic	Single Polpiece	10	Corinth?
EM-6B	ca. 1968	30, 40, 50, 60, 80 KV / (120 KV Overload)	Tungsten Hairpin	2 Electromagnetic	3 Electromagnetic	Single Polpiece	3	EM-8
EM-7	1967	100 KV - 1250 KV	6 x Tungsten Hairpin in 24 Stage Cockraft Walten Accelerator				5	None
EM-8	1968	40, 60, 80 KV / (120 KV Overload)	Tungsten Hairpin	2 Electromagnetic	3 Electromagnetic	Single Polpiece	3	None
EEM-801 Biologists Version of EM-8	1968	40, 60, 80 KV / (120 KV Overload)	Tungsten Hairpin	2 Electromagnetic	3 Electromagnetic	Single Polpiece	5	None
EEM-802 Metallurgists Version of EM-8	ca. 1968	40, 60, 80, 100 KV / (120 KV Overload)	Tungsten Hairpin	2 Electromagnetic	3 Electromagnetic	Single Polpiece	5	None
Corinth Clinical	ca. 1974	60 KV	Tungsten Hairpin	2 Electromagnetic	3 Electromagnetic	Single Polpiece	10	None
Corinth 275	ca. 1974	60 KV	Tungsten Hairpin	2 Electromagnetic	3 Electromagnetic	Single Polpiece	8	None
Corinth 500	ca. 1974	20, 40, 60, 80 KV	Tungsten Hairpin	3 Electromagnetic	3 Electromagnetic	Single Polpiece	5	None
Scanning Transmission Electron Microscops
STEM-1	1975		Tungsten Hairpin					None
STEM-1176	1974		Tungsten Hairpin					None
X-Ray Micro Analyzers
EMMA-4 (modified EM-801)	1968	40, 60, 80 KV / (120 KV Overload)	Tungsten Hairpin	2 Electromagnetic	3 Electromagnetic	Single Polpiece	5	None